W

work breakdown structure (WBS)

a deliverable-oriented grouping of project elements that organizes and defines the total scope of the project. Each descending level represents an increasingly detailed definition of a project component. Project components can be products or services.

work packages

a deliverable at the lowest level of the work breakdown structure. A work package can be divided into activities.

workshift

one or more pairs of on/off working times that define the valid working periods within a single day.